-LRB- CNN -RRB- -- African warlord Joseph Kony and his struggling militia are poaching elephant ivory across central Africa to get funds for weapons , ammunition and food , a report says .

Kony is wanted by the International Criminal Court for alleged war crimes . He is accused of recruiting underage boys as fighters and girls as sex slaves , and is the subject of a massive manhunt aided by U.S special forces .

His militia , the Lord 's Resistance Army , has been butchering elephants for years , according to a report released Tuesday by various groups , including the Enough Project and the Satellite Sentinel Project .

`` Greater investments are needed to combat the LRA across central Africa , '' said co-author Kasper Agger , an Enough Project field researcher .

`` Governments in Asia and elsewhere who fail to regulate the illegal ivory trade share responsibility for atrocities committed by the LRA and other armed groups engaged in poaching . ''

The report includes accounts by former captives , who say that the militia trades ivory with customers who land in the vast forest in helicopters .

U.S. offers $ 5 million for information leading to Kony

Africa 's elephants are facing higher risks as demand for ivory grows in Asia .

Over the last decade , conservationists say poachers have reduced Africa 's forest elephant population by 62 % , threatening the magnificent mammals with eventual extinction .

Unlike decades past when poachers across the continent ran down elephants using spears , attackers are now highly organized and armed with sophisticated weapons .

In northern Cameroon , heavily armed poachers are known to swoop in on horseback in the vast forests .

The vast Garamba National Park in the Democratic Republic of the Congo is one of the areas mostly targeted by the militia , the report said .

Kony and his militia are wanted men .

The United States is offering $ 5 million for information leading to the arrest , transfer or conviction of three top leaders of the Lord 's Resistance Army , including Kony .

A small number of U.S. special forces are advising and assisting regional military efforts to hunt him down .

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Report : The militia gets funds for weapons , ammunition and food

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Africa 's elephants face higher risks as demand for ivory grows in Asia

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Kony is wanted by the International Criminal Court for alleged war crimes